Preventing Seedling Diseases in Early Planted Soybeans
One of the things to consider, as we’re planting earlier soybeans, is the possibility of seedling disease and seed rots. These are favored by cool, moist soils that are prevalent early in the season. To learn more from NC State Extension Specialist, Dr. Lindsey Thiessen, watch our 2-minute video:
Seedling diseases are characterized by lesions either on the roots or just at the base of the plants as they start to emerge out of the soil.
There’s a number of different fungi and oomycetes, that can cause seed and seedling disease issues. The biggest ones for us in North Carolina are rhizoctonia, fusarium, and pythium.
Management options include improving soil drainage, planting whenever we have optimal growing conditions and in some cases using cover crops to help pull moisture out of the soil.
In our recent study, seed treatments were the most consistent treatment to improving stand and were most effective on early planted soybeans where we had those conducive conditions for seed rots.
More information about seed treatments can be found in the resources below. If you believe there might be a seedling disease or seed rot issue on your farm contract your County agent as soon as possible.